Bio:Sister Katherine was just another Warrior Nun, until she raised the ire of the then-Mother Superion and found herself reassigned to the border of Israel with a squad of Marines in 1991 during "Operation Desert Shield." When the encountered a demonic presence deep in a cavern, Sister Katherine raced to the offensive but in the ensuing battle, her eyesight was badly damaged. She found she now saw as those of the spirit world do. In time, she fought her way back to the real world, but the wages of the battle had taken their toll on her, and she had aged many years. Upon her recovery, she was given the title of Mother Superion, and Sister Katherine was declared deceased. Mother Superion now leads a new generation of Warrior Nuns in combat with the forces of Hell, including one extremely talented student named Shannon.

Notes:Mother Superion's first appearance came in Warrior Nun Areala #1, written and drawn by Ben Dunn.